HP5.4 Review

What unit do you use to measure Thermal Energy?

• J/Kg ºC
• Kg
• ºC
• J

Tags

NGSS.MS-PS3-4

What is the symbol for Specific Heat

• Q
• t
• m
• C

What is the equation to measure change in Thermal Energy?

• Q=mc∆t
• Q=mc
• Q= ∆mct
• m=QC

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

A material was heated to 100ºC from 40ºC. What is the temperature change?

• 60ºC

• 40ºC

• -60ºC

• -40ºC

Tags

NGSS.MS-PS3-4

What letter do we use to represent change in temperature?

• Q

• m

• c

• $\Delta T$

A sample of iron receives 50.J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of  0.10 J/g°C, what is the mass of the iron sample?

• 25 g
• 30 g
• 20 g
• 50 g

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-4

You have 20 g of water with specific heat of 4.18 J/gŸ°C. The temperature changes to 25° C from 20° C. How much heat energy (Q) moves from the water to the surroundings?

• 418 Joules

• 209 J

• 83 J

• 4.18 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Calculate the heat absorbed by 105.0 grams of water when it is heated to cook spaghetti. The initial temperature of the water is 20.0°C, and the final temperature of the water is 99.0°C. The specific heat of water is 4.18 J/g•°C.

• 8778 J/g°C
• 0.0005 J/g°C
• 34673 J/g°C
• 43451.1 J/g°C

Tags

NGSS.HS-PS3-1

The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed

• Energy cannot be created or destroyed, it can only be transformed

• Energy can't be created, destroyed or transformed

• Energy cannot be created or destroyed.

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-3

The unit for Energy is

• Joule

• Potential

• Calorie

• Kilojoule

Tags

NGSS.HS-PS3-1

NGSS.HS-PS1-4